Let's say 2 electric motors are doing the same amount of "work", and I don't want the motor to burn up/break.
What I want to know is, which one of these 2 scenarios should I avoid?
1.An electric motor that stalls/stops moving...
Or, 2. A fast electric motor that doesn't stall, but constantly goes at a very high speed?
2007-01-02 15:32:59 · 5 answers · asked by I like horses 1 in Home & Garden ➔ Maintenance & Repairs
well, i would say that it is worst to have your motor stall. industrial motors never(rarely) turn off. they have clutches on them so they stop working, but dont stop turning. this is because the most wear on a motor occures when it starts up, especialy when it is under load. this is because the motors draw more amperage durring startup. this causes extra wear on the motor windings. the constantly moving motor would have more of a bearing issue. if the motors have high quality, long lasting bearings, or if it is not a big deal to change the bearings when they do wear out. personaly, I would think that the windings would wear out faster than the bearings would wear out.
now if there is an issue with the motor having enough power, remember that a more powerful motor will last longer, and just might draw less power. it could be better to just opt for a heavier duty motor.(three phase is highly efficient compared to one phase)
2007-01-02 17:23:17 · answer #1 · answered by cronos51101 5 · 0⤊ 0⤋
A/C motors that are supplied the correct voltage will not exceed the speed listed on the name tag. The motor is "wound" to a specific rpm range. A motor that says 1750 rpm will not exceed 1800 rpm and one that says 3450 rpm will not exceed 3600 rpm. And the bearings installed in these motors at the factory are rated for that speed.
D/C motors can be made to wind up until they fail but I doubt you'll ever have the opportunity to do so. A/C motors are the industry standard now.
As for which is worse? Stalling an A/C motor will definately shorten its life. As the motor is forced to stall it will begin to heat up. Eventually an A/C motor that is constantly forced to stall will short out due to the heat breaking down the insulation in the windings. And a short will occur.
miketyson26
2007-01-03 00:04:00 · answer #2 · answered by miketyson26 5 · 1⤊ 0⤋
Any motor that stops will draw a higher amperage on start up. #2 would be more reliable.
2007-01-03 11:23:57 · answer #3 · answered by Sam H 2 · 0⤊ 0⤋
Speed kills, remember that. The faster object is creating heat and the speed creates more heat. so, in time the faster object may be doing more work but, it may burn out faster. more costly to repair.
2007-01-03 06:12:00 · answer #4 · answered by cowboydoc 7 · 0⤊ 0⤋
2 defianately because 1 can cause more mayhem
2007-01-02 23:39:35 · answer #5 · answered by Anonymous · 0⤊ 0⤋